Brick-press.



w. L. WETTLAUFER.

BRICK PRESS.

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PatentedApI-.24,1917.

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W. lL. WETTLAUFER.

BRICK PRESS. APPLlcAloN mui Dic. 1. 1913.

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W. L. WETTLAUFER.

Patented Apr. 24, 1917.

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APPLICATION FILED DEC. I, 1913. y

Patented Apr. 24, 1917. f

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W. L. WE'TTLAUFER. BRICK PRESS. APPLlcAnbN msn Dc.1,19\3.

1,223,457. n Patented M1124, 1917.

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W. I.. WETTLAUFER.

BRICK `PRESS.

v APPLICATION FILED kDEC. I; 35H3.

Patente Apr. 24, 1917.

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WILLIAM LICHTY WETTLAUFER, 0F TORONTO, ONTARIO, CANADA.

BRICK-PRESS.

Specification of Letters Patent. l

Patented Apr. 24, 1917.

Application led December 1, 1913. Serial No. 803,992.

To all whom t may concern:

Be it known that I, WILLIAM LrcHTY WETTLAUFER, of the city of Toronto, in the county of York,'in the Province of Ontario, Canada, have invented certain new and useful Improvements inBrick-Bresses, of which .j

the following is a specification.

My invention relates to improvements in brick presses and the object of the invention is to devise a machine of simple construction, which will exert a great pressure in propor-k tion to the driving power utilized', by which the finished article will have a clean cut edge, in which means are provided for pressing the bricks or flat tiles of different thickness and it consists essentiallyof a verticallyv movable pressure plunger, a compound lever mechanism and an operating crank for imparting a major reciprocating motion to the pressure plunger and a minor reciprocating motionintervening between the upward and downward major reciprocations of the pres sure plunger, a mold box with which "the pressure plunger co-acts, a lower plunger forming the bottom of themoldfbox, means for imparting upwardv movement to fthe lower plunger during the operation of the upper plunger, means for automatically supplying loose material to the mold box and for delivering the bricks when'pressed and for adjusting the mold boxvertically to produce different thicknesses of bricks as hereinafter more particularly explained by the following specification.

Figure 1, is a generalperspective view of my machine looking from thefront side.

Fig. from the rear side. j

Fig. 3, is a vertical section showing the arts of the machine in position when the mold is filled ready for pressing, the plunger is raised and the previouslyk pressed bricks delivered. n

Fig. 4, is a similar view to Fig.- 3, 'showing the plunger in the position it assumes during the major pressure action.

Fig. 5, isa `similar view to Figs. 3 and 4 showing the pressure plunger partially withdrawn for the minor or repress pressure stroke. i y

Fig. 6, is a similar view kto Figs. 3, 4 and 5 showing the plunger in the position it assumes during the minor or repress stroke. Figs. 7 and S, are detail elevations of the feed operating mechanism.

2, is a. similar view to Fig. 1, looking Figs. 9 and l() are sectional details of an operating cam and co-aoting parts.

Fig. l1, is a sectional detail of a portion rnjf the mechanism for adjusting the mold ox. In the drawings like letters of reference indicate corresponding parts in each igure.

A is the base casting provided with outwardly extending lugs A in which are secured upwardly extending vertical spindles A2 having threaded upper ends A3.

B is an'upper or head casting supported by vertical guide shafts B. The upper casting B is vprovided with horizontal bearingsB2 at each side thereof in which is journaled a main driving shaft C carrying the main drivev wheel C.

D is a crank shaft also journaled in the upper casting B, the crank shaft being driven from the main drive wheel Cby suitable gears GZ and C3. E are links swung upon the driving shaft C. E is a stationary shaft journaled in bearings Bi forming part of the casting B.

' F is a sleeve mounted kupon the shaft E and provided with inwardly extending arms F. G is the main lever mounted upon a cross shaft G (see Figs. 3, 4, 5 and 6) secured at its ends in the arms F. G2 1s a crank pin extending through the upper portion of the lever G; G3 is a link connecting the crank pin G2 with the crank D. G4 is a shaft extending through the lower end of the'flever G. l

rH is the body of the upper pressure plunger provided with vertical bearing sleeves l H having vertical movement on the guide shafts B. 4The plunger body H is provided with downwardly projecting plunger membersH2 having plunger faces H3. H4 are lugs extending upwardly from body and H5 is a forked member swung at its lower end on a pin H6 extending through the lugs H4 the shaft G4. I is a table in which is suitably supported the mold box I', the upper and lower faces of the mold boxbeing open.

I2 is a plate suitably securedto the table ush with the upper edge ofthe mold box. I3 is an adjustable plate'su'pported on set screws I4. Upon the plate Is'rests a metal removable platen I5 designed to receive the bricks when finished. The table I is provided with vertical hollow bosses I6 through which the guide shafts B freely the plunger and lswung at its upper end on extend. I7 are forked horizontal bearings forming part of the table and through which the vertical shafts A2 extend. I8 are sprocket pinions threaded upon the upper ends of the shafts A2.

J is a bracket secured to the underside of the table I and in which is journaled a vertical spindle J on which is mounted a sprocket wheel J2 and a hand wheel J 5 formed integral with the sprocket wheel. J 4 is a sprocket chain meshing with all the sprocket wheels IS and with the inner face of the sprocket wheel J2.

It will be readily seen by turning the handle J 3 all the sprocket wheels I8 may be rotated simultaneously so as to thread them upwardly or downwardly on the plungers A2.

By this means the table I is raised or lowered and the mold box I is adjusted to the required position for pressing bricks of different thicknesses.

K is a lower plunger body provided with sleeve portions K slidably supported upon the guide shafts B. K2 are compression springs extending between the table I and the portions K of the plunger body K.

L is an arm swung upon a pin L extending from the upper or head casting B. The free end of the arm L is provided with a fork L2 between which is pivoted a pull rod L3 on a pin L extending through the fork. The pull rod is divided intermediately of its length, the members composing the rod having a threaded connection. I9 is a forked bearing forming part of the table I and provided with vertically alined orifices I1 through which the pull rod L3 extends. L5 is a sprocket feather keyed on the pull rod L3 between the forks of the bearing I9. By this means the position of the lower plunger is adjusted in relation to the position of the table so as to raise the bricks when pressed to the proper level for delivery.

M is a lug extending from the plunger body K and through which the pull rod extends. M are nuts threaded on to the lower end of the lpull rod beneath the lug M.

N is a cam mounted on the crank shaft D. O is a cushioning plunger extending from the lower face ofthe plunger body K into a suitable oil well O. P is a cam mounted on the main shaft C and provided with a surrounding strap P. P2 is a rod extending from the strap vertically through the plunger body K to which it is suitably secured. Q is a. receiving hopper for the loose material which is supported by bearings Q upon' the table Q.

R is a cut-oil' device comprising an open bottom receptacle R and a cut-off plate R2 extending horizontally therefrom. It will be noticed that the level of the cut-0E plate R2 is slightly below the level of the top of the receptacle R.

S and S are bell cranks mounted upon the rocking shaft S2 journaled in bearings S3 forming part of the table. The bell cranks S and S comprise a long arm S4 and a short arm S5. SG are links connecting' the long arm S4 of the bell cranks S and S to the front portion of the open bottom receptacle R. The short arm S5 of the bell crank S is provided with a laterally extendingpin S7. The arm S5 of the bell crank S is provided with a lateral extending pin S8 (see Figs. 7 and 8). S2 is a link bar pivoted at its inner end to the bell crank S at the opposite side of its fulcrum formed by the shaft S2, to the pin S8. The bar S9 is provided with a notch S10 at its inner edge.

T and T are link bars. The link bar T is pivotally connected at its upper end to the central portion of the lever Gr and is provided at its lower end with a longitudinal slot T2 into which the pin S7 extends. The link bar T is also connected to the lever G at the opposite side thereof and is shorter than the link bar T, being pivotally connected at its lower end to the bar S9 intermediately of its length. S11 is a pin carried by the link bar T and designed to engage with the notch S10 of the bar S2 when the bars T and S9 are brought into longitudinal alinement as hereinafter described.

f Having described the principal parts involved in my invention I will briefly describe the operation of the same.

I will refer first to Figs. l, 2 and 3. In this position of the machine the brick has already been pressed and carried on to the platen I5 and the loose material deposited in the mold box ready to press another bri-ck. The crank arm D is revolved in the direction of arrow toward the position shown in Fig. il. By this movement of the crank arm I) the main lever G is carried rearwardly and downwardly toward a vcrtical position. the center of the lever swinging upon the shaft G and the arm F swinging toward a longitudinal position and the arm E swinging toward a vertical position. During the initial portion of this movement the bell cranks S and S are swung on the shaft S2 in the direction of arrow with a quick throw rearwardly carrying the cut-off device R from the'position shown in Fig. 3 to the position shown in Fig. 4t, that is to say, immediately below the hopper Q. This movement of the cut-off device takes place before the plunger faces reach the level of the upper edge of the cut-off device. The plunger body H2 continues to descend into the mold box until the lever G and links E and fork member I-I5 are all in vertical alinement with the plunger body I-I.

Simultaneously with this movement the cam P operates to raise the lower plunger body slightly upwardly so that the material within the mold box is both compressed by a slight upward as well as a downward presintegral unit. During the movement of the sure. As soon as the cut-'off device K is carried to the position above described beneath the hopper the pin SS strikes the locking bars S9 and T so as to break joint and throw them into the position shownk in Figs. 4 and 7 allowing the link bar T to still move longitudinally. The link bar T, of course, will also move longitudinally by reason of its slotted connection with the arm F5 of the bell crank S. The crank Y arm yD continues to revolve until it reaches the position shown in Fig. 5. In this position it will be seen that the lever Gr is thrown into a slightly forwardly inclined position imparting a slight upward movement to the body of the pressure plunger. The crank arm D then revolves into the position shown in Fig. 6 bringing the lever G, link C and fork member H5 into a vertical position in vertical alinement with the plunger body H and carrying the plunger face H3 into position to repress the already pressed material. The crank arm I) then revolves again toward the position shown in Fig. 3 carrying the plunger body vertically upwardly.

During the vertical movement of the plunger body toward the position where it will be clear of the horizontal movement of the cut-ofi'A device It the link T swings the bar S9 upwardly until the notch S10 engages the pin S11, or in otherwords, when the bar S9 is in longitudinal alinement with the link bar T.

Immediately the link T and bar S9 are brought into this position they act as an bar S9 into longitudinal alinement with the link bar T the cam N engages with the arm L swinging it upwardly thereby raising the lower .plunger body K vertically upwardly until the upper face of the lower plunger is hush with the upper edgev of the mold box thereby carrying the pressed brick into position ready to be delivered. c As soon as the bar S9 has been brought into vertical alinement with the link bar T, the upper pressing plunger raised, and the brick brought to the position for delivery as above described, the bell cranks S and S are thrown forwardly by a quick forward throw carrying the cut-ofil device forwardly over the mold boX and deliveringthe loose material contained in the cut-ofi device into thek mold box to lill the same.

Simultaneously the cut-olf device pushes the pressed bricks forwardly on to' the Copies of this patent may be obtained for platen I5 from whence they may be removed. The mechanism than repeats its operation.

In order to adjust the machine for bricks of greater or less thickness I operate the hand wheel .I5 which by turning the sprocket wheels A7 on the threaded portion of the spindle A2 raises the mold box upwardly or downwardly in position relative with the lower plunger to receive more or less loose material when the receptacle of the cut-olf device is brought into the position to deliver the same.

From this description it will be seen that I have devised a very simple form of machine in which a maximum amount of pressure is given to the brick and also a slight after pressure which finishes the brick so as to give it a clear cut edge and at the same time providing a simple means whereby bricks are delivered on to a suitable platen without danger of injury or cracking.

What I claim as my invention is- In a brick press, a main frame, a table supported by the main frame, a mold boX having an open top and bottom supported by the table and having its upper edge flush with the surface thereof, upper and lower plungers adapted to enter said mold boX, a feed hopper for feeding material to said mold boX, a cut-off device for said hopper, a main operating lever for said upper plunger, a link connection between the upper plunger and main lever, means for operating the lower plunger to co-act with the upper plunger, a rocking shaft journaled in suitable bearings beneath the table, a bell crank mounted on said rock shaft, a link connection between said bell crank and cut-olf device for operating the same, means for operating the bell crank from the main lever comprising a notched bar pivoted to the short arm of said bell crank, a link connecting` said bar intermediately of its length with said main lever, a pin carried by the link adapted to engage the notch of the bar when such bar and link are alined, and a pin-extending from said bell crank adapted to 'engage the joint between the link and bar and throw said link and bar out of engagement.

wM. Lier-rrr WETTLAUFER.

Witnesses v E. PnNNooK,

M. EGAN.

Washington, D. C. 

